CN2663708Y - Energy-saving control device of hydraulic quantitative oil pump - Google Patents
Energy-saving control device of hydraulic quantitative oil pump Download PDFInfo
- Publication number
- CN2663708Y CN2663708Y CN 200320121165 CN200320121165U CN2663708Y CN 2663708 Y CN2663708 Y CN 2663708Y CN 200320121165 CN200320121165 CN 200320121165 CN 200320121165 U CN200320121165 U CN 200320121165U CN 2663708 Y CN2663708 Y CN 2663708Y
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- control device
- hydraulic pressure
- oil pump
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Abstract
The utility model relates to an energy-saving control device of hydraulic quantitative oil pump, which mainly comprises a selection switch, a signal conversion plate, a transducer, a control board of an energy-saving system and at least two controllers. The utility model outputs the voltage signal according the needed flow signal conversion of an oil channel system, wherein the control signal is used to control the transducer and control the operation frequency of a hydraulic motor synchronously, thereby realizing effective regulation of oil output.
Description
Technical field
The utility model is a kind of energy-saving control device of hydraulic pressure quantitative oil pump, the energy-saving control device of the oil mass of may command quantitative oil pump output specifically.
Background technique
Existing hydraulic-pressure pump adopts vane oil pump mostly, and the oil pump feed amount is directly proportional with the rotating speed of oil pump.When oil pump motor reached certain frequency, the oil pump feed amount maintained a fixed level.Because the hydraulic-pressure pump frequency of okperation is unfixed in the real work, corresponding variation also takes place in the demand of oil pump lubricant oil, thereby supply exceed demand to cause oil mass sometimes.
When the required oil mass of hydraulic-pressure pump hour, remaining oil mass can overflow back fuel tank when high pressure.When above-mentioned situation occurring, except meeting caused a large amount of energy wastes, fierce friction took place and produces a large amount of heats in the oil and the inner-walls of duct that also can occur still being under the high pressure conditions, thereby causes hydraulic oil temperature and pipe temperature to raise.The method of existing this type of problem of solution normally adopts the addition cooling system to carry out local cooling and determines, thereby also just correspondingly increased equipment cost and energy loss.
At present, the hydraulic pressure quantitative oil pump still has comparatively widely and to use, and is aforesaidly also solved because of the too high energy dissipation that causes of the excessive and oily temperature of oil mass at all.
Summary of the invention
The energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model, can provide the energy-saving control device of changing output voltage signal according to the required flux signal of system in order to address the above problem with deficiency, come the operation frequency of synchronization control oil pump motor by the frequency conversion conversion of control signal, thereby reach the purpose of effective adjusting oil mass output.
The energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model mainly includes a selector switch, a signal transducer, a frequency variator, an energy conserving system control panel and at least two controllers.
The energy-saving control device of described hydraulic pressure quantitative oil pump is connected between three phase mains end and the hydraulic pressure Constant Pump System, regulates the on off state of described energy-saving control device by selector switch.
When selecting switch to disconnect, the energy-saving control device of described hydraulic pressure quantitative oil pump is disconnected, the power supply of the direct feeding compression set of three phase mains end amount pumping system.
When selecting switch on, the energy-saving control device of described hydraulic pressure quantitative oil pump output control signal, the lubricant oil output quantity of coming regulator solution compression set amount pumping system Y.
As mentioned above, when selecting switch on, the computer plate of hydraulic pressure Constant Pump System outputs signal to signal transducer, after signal transducer is handled, the voltage signal that amplifies is exported to frequency variator, by the motor rotary speed of frequency variator synchronization control hydraulic pressure Constant Pump System, the final control oil mass that realizes is exported at last.
Frequency variator is by set reset switch, in order to finish the reset operation of the frequency variator under the abnormal conditions.
The energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model mainly includes a signal sampling resistance, a reference diode, three amplifiers that are connected in series in its signal transducer circuit.
The signal sampling resistance and first amplifier are connected in parallel;
Reference diode D1 is in parallel with first amplifier;
First amplifier isolate to amplify the current signal through the sampling resistor input, and second amplifier constitutes a tracking circuit, second amplifier series connection the 3rd amplifier behind the resistance of connecting; Simultaneously, the signal input part that connects frequency variator behind second amplifier series connection divider resistance;
The operating voltage of the 3rd amplifier is 10V, also is connected with the signal input part of frequency variator behind diode of series connection;
As mentioned above, the signal input part of frequency variator receives two-way through amplifying signal, one the tunnel is the signal of exporting via behind second amplifier and the divider resistance, another road is the signal of exporting behind second amplifier, divider resistance, the 3rd amplifier and diode, can draw the voltage signal proportional by comparing two paths of signals with sampling resistor, thereby frequency variator is regulated the motor actual speed of described hydraulic pressure Constant Pump System according to the voltage signal of input, reaches energy-saving effect.
As mentioned above, when selecting switch to disconnect, the energy-saving control device of described hydraulic pressure quantitative oil pump is disconnected, does not play a role, and the power supply of the direct feeding compression set of three phase mains end amount pumping system.Then this moment, motor rotary speed keeps certain value, and actual oil pump oil mass also is a definite value.
Select power save mode, regulate by selector switch and energy conserving system control panel.
In sum, adopt the energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model, have the following advantages and beneficial effect:
1, adopts aforesaid energy-saving control device, can select power save mode, control comparatively simple and feasible according to actual hydraulic pressure quantitative oil pump output power;
2, comparatively accurate for the control of oil pump oil mass, correspondingly can save a large amount of electric energy and the equipment investment that is used for cooling system;
3, use above-mentioned energy-saving control device, can effectively improve the service life of equipment of whole hydraulic system.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described further:
Fig. 1 is the energy-saving control device schematic representation of hydraulic pressure quantitative oil pump described in the utility model;
Fig. 2 is the energy-saving control device partial structurtes schematic representation of described hydraulic pressure quantitative oil pump;
Fig. 3 is described signal transducer electrical block diagram.
Wherein, as shown in Figure 1, K switch, hydraulic pressure Constant Pump System Y, hydraulic-pressure pump computer plate A, signal transducer B, frequency variator C, energy conserving system control panel D and controller KM1, KM2;
As shown in Figure 2, control switch K1, reset switch SA, controller KM1, KM2, KM3, KM4 and KM5, tutorial light LD1, LD2, ventilation fan SH, signal end IA, the GA of signal transducer B, three phase mains end L1, L2, L3;
As shown in Figure 3, amplifier U1, U2, U3, resistance R 1 is to R11, voltage-stabiliser tube D1, diode D2, D3, D4, and capacitor C 1 is to C8.
Embodiment
As shown in Figure 1, the energy-saving control device of described hydraulic pressure quantitative oil pump is connected between three phase mains end and the hydraulic pressure Constant Pump System Y, regulates the on off state of described energy-saving control device by K switch.
When K switch disconnects, controller KM2 closure, controller KM1 disconnects, and the energy-saving control device of then described hydraulic pressure quantitative oil pump is disconnected, the direct feeding compression set of three phase mains end amount pumping system Y power supply.
When K switch was closed, controller KM2 disconnected, and controller KM1 closure is then exported control signal, the lubricant oil output quantity of coming regulator solution compression set amount pumping system Y by the energy-saving control device of described hydraulic pressure quantitative oil pump.
At the adjusting of controller KM1 and KM2 open and-shut mode, D realizes by the energy conserving system control panel.
As mentioned above, when K switch, when controller KM1 is closed, the computer plate A of hydraulic pressure Constant Pump System Y outputs signal to signal transducer B, after signal transducer B handles, the voltage signal that amplifies is exported to frequency variator C, by the motor output power of frequency variator C synchronization control hydraulic pressure Constant Pump System Y, export at last with the control oil mass.
As shown in Figure 2, the energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model, signal transducer B is by the signal input of signal end IA with computer plate A.
Under abnormal conditions, can directly be communicated with X1 and GND terminal by reset switch SA, to finish reset operation to frequency variator C.
But open and-shut mode by tutorial light LD1, LD2 display controller KM1, KM2.
In fact, being applied among the described hydraulic pressure Constant Pump System Y, is to prevent the infringement of too high voltages to equipment when the whole system electrifying startup, powering on the starting stage control switch K1, controller KM1, KM4 closure, other switches disconnect, and then the hydraulic-pressure pump motor adopts the triangle Placement; After treating stabilized input voltage, control switch K1, controller KM2, KM3, KM5 closure, other switches disconnect, and then the hydraulic-pressure pump motor adopts star-like Placement.
As Fig. 2, shown in Figure 3, the energy-saving control device of hydraulic pressure quantitative oil pump described in the utility model mainly includes a signal sampling resistance R 3, amplifier U1, U2, U3 in its signal transducer B circuit structure.
Signal sampling resistance R 3 and amplifier U1 are connected in parallel, and amplifier U1 and U2, U3 are connected in series.
Amplifier U1 is by connecting with resistance R 8 and being connected amplifier U2; By divider resistance R1, amplifier U1 links to each other with the 24V voltage input end; Reference diode D1 is in parallel with amplifier U1, and the one end connects resistance R 1, the other end ground connection, being fixed up by the amplifier U1 both end voltage behind the divider resistance R1, guarantees amplifier U1 proper functioning.
Amplifier U1 isolates the current signal that amplifies through sampling resistor R3 input, and in fact amplifier U2 constitutes a tracking circuit at this.Behind the series resistors R7, the signal input amplifier U2 after amplifier U1 will amplify.
Amplifier U2 series connection divider resistance R1, R8, the signal after amplifier U2 handles is with identical via the signal of amplifier U1 output.Behind the amplifier U2 series resistors R9, connect amplifier U3; Simultaneously, the signal input part VRF that connects frequency variator C behind amplifier U2 series resistors R9, the R10.
The operating voltage of amplifier 3 is 10V, and by ground connection behind the series resistors R11; Behind the amplifier 3 series diode D4, be connected with the signal input part VRF of frequency variator C;
As mentioned above, the signal input part VRF of frequency variator C receives two-way through amplifying signal, one the tunnel is the signal via amplifier U2, resistance R 9, R10 output, another road is the signal through amplifier 2, resistance R 9, amplifier U3 and diode D4 output, can draw proportional voltage signal by comparing two paths of signals, thereby frequency variator C regulates the motor rotary speed of described hydraulic pressure Constant Pump System Y according to the voltage signal of input with sampling resistor R3.
Claims (6)
1, a kind of energy-saving control device of hydraulic pressure quantitative oil pump, it is characterized in that: mainly include a selector switch, a signal transducer, a frequency variator, an energy conserving system control panel and at least two controllers, described energy-saving control device is connected between three phase mains end and the hydraulic pressure Constant Pump System, the computer partitioned signal output terminal of hydraulic pressure Constant Pump System connects signal transducer, and the voltage signal output end of signal transducer connects frequency variator.
2, the energy-saving control device of hydraulic pressure quantitative oil pump according to claim 1, it is characterized in that: mainly include a signal sampling resistance, a reference diode, three amplifiers that are connected in series in the circuit of described signal transducer, wherein the signal sampling resistance and first amplifier are connected in parallel, and reference diode is in parallel with first amplifier.
3, the energy-saving control device of hydraulic pressure quantitative oil pump according to claim 2, it is characterized in that: first amplifier by and a divider resistance be connected second amplifier after connecting, connect the 3rd amplifier behind second amplifier series connection divider resistance, and connect the signal input part of frequency variator behind second amplifier series connection divider resistance.
4, the energy-saving control device of hydraulic pressure quantitative oil pump according to claim 3 is characterized in that: behind diode of the 3rd amplifier series connection, be connected with the signal input part of frequency variator.
5, the energy-saving control device of hydraulic pressure quantitative oil pump according to claim 4 is characterized in that: the operating voltage of first amplifier and second amplifier is 24V, and the operating voltage of the 3rd amplifier is 10V.
6, the energy-saving control device of hydraulic pressure quantitative oil pump according to claim 1 or 5 is characterized in that: a reset switch is set in the described converter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320121165 CN2663708Y (en) | 2003-12-05 | 2003-12-05 | Energy-saving control device of hydraulic quantitative oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320121165 CN2663708Y (en) | 2003-12-05 | 2003-12-05 | Energy-saving control device of hydraulic quantitative oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663708Y true CN2663708Y (en) | 2004-12-15 |
Family
ID=34348297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320121165 Expired - Fee Related CN2663708Y (en) | 2003-12-05 | 2003-12-05 | Energy-saving control device of hydraulic quantitative oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663708Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936320A (en) * | 2010-09-14 | 2011-01-05 | 张家港市吉源科技有限公司 | Frequency conversion and energy conservation device of hydraulic system |
| RU2743741C1 (en) * | 2020-10-30 | 2021-02-25 | Акционерное общество "Национальный центр вертолетостроения им. М.Л. Миля и Н.И. Камова" (АО "НЦВ Миль и Камов") | Pumping station control device |
-
2003
- 2003-12-05 CN CN 200320121165 patent/CN2663708Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936320A (en) * | 2010-09-14 | 2011-01-05 | 张家港市吉源科技有限公司 | Frequency conversion and energy conservation device of hydraulic system |
| RU2743741C1 (en) * | 2020-10-30 | 2021-02-25 | Акционерное общество "Национальный центр вертолетостроения им. М.Л. Миля и Н.И. Камова" (АО "НЦВ Миль и Камов") | Pumping station control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan city jinyuantai Technology Energy Co. Ltd. Assignor: Li Yunping|Wang Shanhua Contract fulfillment period: 2006.12.12 to 2012.12.11 Contract record no.: 2008320001048 Denomination of utility model: Energy-saving control device of hydraulic quantitative oil pump Granted publication date: 20041215 License type: Exclusive license Record date: 20081022 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.12.12 TO 2012.12.11; CHANGE OF CONTRACT Name of requester: KUNSHAN CITY JINYUANTAI SCIENCE ENERGY CO., LTD. Effective date: 20081022 |